Switch

Patent metadata

Field	Value
Publication number	US-9478375-B2
Application number	US-201314099197-A
Country	US
Kind code	B2
Filing date	Dec 6, 2013
Priority date	Jun 7, 2011
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

A stationary contact for a rotary switch is provided. The stationary contact includes a connection portion for connecting to a conductor and a first portion being a contact portion for connecting the stationary contact to a rotary contact. The stationary contact also includes a second portion being a support portion for supporting the stationary contact to a switch body. The contact portion and support portion extend in the same angle from the connection portion. A method of mounting a rotary switch is also provided.

First claim

What is claimed is:

1. A stationary contact for a rotary switch, comprising:
a connection portion for connecting to a conductor, the connection portion having a first end and a second end opposite to the first end;
a first portion which is a contact portion for connecting the stationary contact to a rotary contact; and
a second portion which is a support portion for supporting the stationary contact to a switch body,
wherein the contact portion and the support portion project from the first end of the connection portion in a Y-shaped configuration and each extend at the same angle away from the first end of the connection portion, and
wherein the contact portion and the support portion intersect at a point of intersection, and the contact portion and the support portion each extend at the same angle from the point of intersection.

2. A stationary contact according to claim 1 , wherein an outer edge of the first portion and an inner edge of the second portion are slanted.

3. A stationary contact according to claim 1 , wherein the stationary contact includes teeth extending perpendicularly from an end of the stationary contact for supporting the stationary contact to a contact lug.

4. A stationary contact according to claim 3 , wherein the connection portion includes an upwards bent portion at an end of the stationary contact bent to prevent a contact lug to be displaced from its place.

5. A stationary contact according to claim 3 , wherein the stationary contact includes teeth that extend perpendicularly from the connection portion for locking the stationary contact to the switch body.

6. A stationary contact according to claim 1 , wherein a top surface of the stationary contact includes a hole for receiving a screw.

7. A stationary contact according to claim 1 , wherein part of the surface of the stationary contact includes a knurling for providing additional force for keeping the conductor in place.

8. A stationary contact according to claim 1 , wherein the connection portion includes a downward bent portion for assisting in receiving a screw to connect the conductor to the stationary contact.

9. A stationary contact according to claim 1 , wherein the connection portion includes an upwards bent portion at an end of the stationary contact bent to prevent a contact lug to be displaced from its place.

10. A stationary contact according to claim 1 , wherein the stationary contact includes teeth that extend perpendicularly from the connection portion for locking the stationary contact to the switch body.

11. A stationary contact according to claim 1 , wherein the stationary contact is substantially symmetrical.

12. A stationary contact according to claim 1 , wherein the stationary contact is made of one piece of copper and is coated with silver.

13. A rotary switch, comprising:
a first body of a first type;
a second body of a second type, the first and second bodies being mounted together, wherein:
both of the first and second bodies house similar stationary contacts according to claim 1 ;
in the first body, the first portion constitutes a contact surface for connecting the stationary contact to a rotary contact, and the second portion constitutes a support surface for supporting the stationary contact to the first body; and
in the second body, the first portion constitutes a support surface for supporting the stationary contact to the second body, and the second portion constitutes a contact surface for connecting the stationary contact to the rotary contact.

14. A rotary switch according to claim 13 , comprising:
a receptacle configured to receive at least one of the stationary contacts and sized substantially to a width and breadth of a portion of the stationary contact; and
an opening in a wall for receiving another portion of the stationary contact.

15. A rotary switch according to claim 14 , wherein the connection portion of the stationary contact is arranged perpendicularly to a side of a body of the switch.

16. A rotary switch according to claim 13 , wherein the connection portion of the stationary contact is arranged perpendicularly to a side of a body of the switch.

17. A method of mounting a rotary switch, comprising:
providing a first body of a first type;
mounting a first stationary contact to the first body, the first stationary contact including a connection portion for connecting to a conductor, a first portion which is a contact portion for connecting the stationary contact to a rotary contact, and a second portion which is a support portion for supporting the stationary contact to a switch body, the connection portion having a first end and a second end opposite to the first end, the contact portion and the support portion projecting from the first end of the connection portion in a Y-shaped configuration and each extending at the same angle away from the first end of the connection portion, the contact portion and the support portion intersecting at a point of intersection, and the contact portion and the support portion each extending at the same angle from the point of intersection;
providing a second body of a second type to be mounted overlapping the first body;
mounting a second stationary contact to the second body,
wherein the first stationary contact and the second stationary contact face the same side of the switch and are misaligned with each other, and
wherein the first stationary contact and second stationary contact are similar.

18. A method according to claim 17 , wherein at least one of the first and second stationary contacts has a form substantially of the letter Y.

Assignees

• Abb Oy

Inventors

• Uitto Oskari
• Suutarinen Aki
• Kolmonen Rainer

Classifications

• H01H11/00

  Apparatus or processes specially adapted for the manufacture of electric switches (processes specially adapted for manufacture of rectilinearly movable switches having a plurality of operating members associated with different sets of contacts, e.g. keyboards, H01H13/88) · CPC title

• H01H33/42

  Driving mechanisms · CPC title

• H01H1/2041 Primary

  Rotating bridge · CPC title

• H01H19/02

  Details · CPC title

• Y10T29/49105

  Switch making · CPC title